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Dewey Dragonflies

PlayhousePals says...

>> ^Buck:

They eat mosquitos. I love them. They also were the reason I wanted to study flying helicopters...never did do that, but I watch them instead now.


They're doing a good job of that here ... there are hardly any mosquitoes that I've noticed being so close to the lake!

Dewey Dragonflies

BoneRemake says...

I was just working in a field where there was hundreds of them. It was weird, like I was in faery land or something, but they seemed to be all over the place, many of them together embracing in the dragonfly fuck.

I wish I could scrape my eyes like that to clean them.

The water looks exactly like trichromes do on cannabis leaf.

Slow motion of a mosquito flight & killing it with a laser

Handfeeding a Dragonfly

artician says...

Yeah, very clear, close-up focus.

I'm curious to know the aftermath of this. I didn't think insects could really heal broken limbs, so did she have to feed it until it finally gave up and died? Or is it possible to nurse a dragonfly back to health?

Remote Control Bird

Damsel fly catches a gnat in slow motion

AnimalsForCrackers says...

I think you MAY be thinking of the mayfly, Retro. Me so punny.

At first glance I was inclined to agree with xxovercastxx, considering the positioning of the wings (something to consider though, they do not always have the appearance of being near-perfectly parallel to the body, sometimes sticking out at acute angles away from the point of attachment/thorax, which sorta looks like the one in the vid and may be easy to confuse with the dragon fly's wing arrangement when viewed from certain angles), BUT there are a couple of very un-dragonfly-like features here as well.

Most species of dragon flies have their compound eyes touching/fused at the top of the head, looking like one cohesive structure, while mayflies' eyes are placed more on the sides of the head and protrude outwards more, with a noticeable gap of forehead space in between them. Also, the base of the bottom pair of wings seems too skinny to be a dragon fly, where usually the bottom wings remain much broader for much longer, compared to the top pair as you get closer to thorax before finally tapering down to the connection point, though there may be exceptions in morphology from species to species.

I'm no entomologist though, just someone who enjoys watching these buggers go about their business (they're surprisingly tolerant of people and seem quite intelligent for insects, I'd say jumping spiders, Phidippus Audax specifically, are the only creepy crawlies around here that appear to be any smarter, more charming, gregarious than dragon/damsel flies).

I'm too torn either way to definitively call it. I did enjoy speculating about it quite needlessly though. Yay insomnia and Videosift!!

Damsel fly catches a gnat in slow motion

Retroboy says...

Not sure but I think it's a dragonfly too. Damselflies, at least the ones at my lake, don't actually eat during their adult lifespan. They have no mouth.

Perhaps they're different where this guy was filming though.

Damsel fly catches a gnat in slow motion

Nature by Numbers: beautiful illustration of math in Nature

rottenseed says...

>> ^dannym3141:

???
This is just showing unrelated numbers and drawing arbitrary boxes around nature.
The bit where it started showing 137.5 degrees and firing circles off which then turned into a sunflower seed, what the hell was that? Why not 132 degrees or 7, there was no correlation to the position or number of the seeds and the angle at which circles were fired off. And every shell adheres to the fibonacci sequence - is that tru? I've never heard that before. A bunch of lines randomly spinning and aligning to show a patch on a wing of a dragonfly? The numbers were completely arbitrary to the pictures shown, don't like the combination of the title to the content of this video.


He's some reading for you: http://library.thinkquest.org/27890/applications5.html

Also he was showing the relationship of "natural" shape patterns. He related them using natural patterns and numbers.

Nature by Numbers: beautiful illustration of math in Nature

enemycombatant says...

>> ^dannym3141:

???
This is just showing unrelated numbers and drawing arbitrary boxes around nature.
The bit where it started showing 137.5 degrees and firing circles off which then turned into a sunflower seed, what the hell was that? Why not 132 degrees or 7, there was no correlation to the position or number of the seeds and the angle at which circles were fired off. And every shell adheres to the fibonacci sequence - is that tru? I've never heard that before. A bunch of lines randomly spinning and aligning to show a patch on a wing of a dragonfly? The numbers were completely arbitrary to the pictures shown, don't like the combination of the title to the content of this video.


It looks like this was made by an artist with an interest in math, not the reverse. That would explain why the imagery took priority of the mathematical explanations.

Nature by Numbers: beautiful illustration of math in Nature

dannym3141 says...

???

This is just showing unrelated numbers and drawing arbitrary boxes around nature.

The bit where it started showing 137.5 degrees and firing circles off which then turned into a sunflower seed, what the hell was that? Why not 132 degrees or 7, there was no correlation to the position or number of the seeds and the angle at which circles were fired off. And every shell adheres to the fibonacci sequence - is that tru? I've never heard that before. A bunch of lines randomly spinning and aligning to show a patch on a wing of a dragonfly? The numbers were completely arbitrary to the pictures shown, don't like the combination of the title to the content of this video.

Nature by Numbers: beautiful illustration of math in Nature

Rocket Powered Helicopter

siftbot says...

Tags for this video have been changed from 'hydrogen peroxide, H2O2, Swiss, test, chopper, dragonfly' to 'hydrogen peroxide, H2O2, Swiss, test, chopper, dragonfly, smoky, smoke' - edited by calvados

A frog tries to eat a dragonfly... and doesn't quite make it

silvercord says...

Pretty sweet how he tried to scoop it in with his front feet, legs akimbo, tongue a-flailin'. Mr. Dragonfly, with what has been called 'the most complicated eye structure in the insect world," sees Kermit easily and deftly lifts away from danger. Nice.

Frog Misses Dinner of Dragonfly in Cool 9 Sec. Slow-Mo Fail

siftbot says...

This video has been declared a duplicate by the original submitter; transferring votes to the original video and killing this dupe - dupeof declared by Hybrid.

This video has been nominated as a duplicate of this video by Hybrid. If this nomination is seconded with *isdupe, the video will be killed and its votes transferred to the original.



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